Magnetic Properties of GaSb Quantum Dots Include Spin-Orbit Interaction

Abstract

Quantitative numerical calculations of the effect of spin-orbit interaction on the magnetization and magnetic susceptibility of electrons to low-dimensional quantum dots were presented. The obtained characteristics demonstrate the irregular behavior in the region of ultralow temperatures. It is shown that the magnetization restraints at small magnetic fields are associated with the intersection of the energy levels of electrons, as a result of spin-orbit interaction. The calculations performed for GaSb quantum dots demonstrate the transformation of diamagnetic properties into paramagnetic ones, as well as the smoothing of the characteristics of magnetization and magnetic susceptibility with increasing temperature.